In areas with heavy automobile traffic, however, the seed germinates in the absence of fire, with automobileexhaust supplying the required nitrogen dioxide.
然而,在汽车交通繁忙的地区,种子在没有火灾的情况下借助汽车尾气提供所需的二氧化氮发芽。
2
On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobileexhaust.
在地球上,烤糊的面包和汽车尾气里都含有稠环芳烃。
3
Automobileexhaust fumes are one of the major caueses of smog.